Move library tree where it belongs

lib-src/libsndfile/M4/gcc_version.m4

@@ -0,0 +1,33 @@
+dnl @synopsis AC_GCC_VERSION
+dnl
+dnl Find the version of gcc.
+dnl @version 1.0	Nov 05 2007
+dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+dnl
+dnl Permission to use, copy, modify, distribute, and sell this file for any 
+dnl purpose is hereby granted without fee, provided that the above copyright 
+dnl and this permission notice appear in all copies.  No representations are
+dnl made about the suitability of this software for any purpose.  It is 
+dnl provided "as is" without express or implied warranty.
+dnl
+
+AC_DEFUN([AC_GCC_VERSION],
+[
+if test "x$ac_cv_c_compiler_gnu" = "xyes" ; then
+
+	AC_MSG_CHECKING([for version of $CC])
+	GCC_VERSION=`$CC -dumpversion`
+	AC_MSG_RESULT($GCC_VERSION)
+
+	changequote(,)dnl
+	GCC_MINOR_VERSION=`echo $GCC_VERSION | sed "s/^[0-9]\+\.//" | sed "s/\..*//"`
+	GCC_MAJOR_VERSION=`echo $GCC_VERSION | sed "s/\..*//"`
+	changequote([,])dnl
+	fi
+
+AC_SUBST(GCC_VERSION)
+AC_SUBST(GCC_MAJOR_VERSION)
+AC_SUBST(GCC_MINOR_VERSION)
+
+])# AC_GCC_VERSION
+